)
for both Ethernet and non-Ethernet services, so it is usually difficult to quantify the
OPEX associated exclusively with Carrier Ethernet; the integrated nature of the platform
functionality, and often the support infrastructure, make it impractical.
In addition to the CAPEX and OPEX associated with the solution itself (which is
usually comprised of hardware, software, documentation, etc.), one must be mindful of
the infrastructure costs associated with a solution; for instance, a fiber infrastructure
is mandatory for SONET, PON, and Bridging solutions, and the costs associated with
this must be considered to understand the true costs of deploying a particular solution.
Often though, such an infrastructure usually exists, and the question may be moot.
While the respective chapters in Part II provide a more detailed cost analysis for each
of the solutions, Table 16.8 attempts to gauge the relative costs as low, reasonably attractive,
or high to provide a general ???feel.??? Most of the costs of the access-only solutions
such as Copper, HFC, and so on, are relatively low and account for their fairly wide
(re)use as an Ethernet delivery solution (notwithstanding their limitations due to scale,
management, functionality, etc).
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